* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --blue-50: #f3faff;
  --blue-100: #e3f2fb;
  --blue-200: #c4e3f1;
  --blue-300: #9dd0e7;
  --blue-400: #74b9d9;
  --blue-500: #5099c2;
  --blue-600: #3a7da5;
  --cream: #fefcf7;
  --cream-warm: #faf4ea;
  --rose: #f5d8dd;
  --gold: #c9a87c;
  --ink: #2b3e54;
  --ink-soft: #4a5d75;
  --muted: #7a8da4;

  --font-display: "Italiana", serif;
  --font-serif: "Cormorant Garamond", serif;
  --font-jp: "Shippori Mincho B1", serif;
  --font-sans: "Noto Sans JP", sans-serif;
}

html,
body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 300;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.bg-decor {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.bg-gradient {
  position: absolute;
  inset: -10%;
  background:
    radial-gradient(
      ellipse at 12% 8%,
      var(--blue-200) 0%,
      transparent 45%
    ),
    radial-gradient(
      ellipse at 88% 18%,
      var(--blue-100) 0%,
      transparent 55%
    ),
    radial-gradient(
      ellipse at 75% 85%,
      var(--rose) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 10% 95%,
      var(--blue-100) 0%,
      transparent 60%
    ),
    linear-gradient(180deg, var(--blue-50) 0%, var(--cream) 70%);
  filter: saturate(1.1);
}

.bg-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.7'/%3E%3C/svg%3E");
  opacity: 0.06;
  mix-blend-mode: multiply;
}

.header {
  padding: 5.5rem 2rem 3rem;
  text-align: center;
  position: relative;
}

.header-inner {
  max-width: 640px;
  margin: 0 auto;
}

.kicker {
  font-family: var(--font-serif);
  font-size: 0.7rem;
  letter-spacing: 0.55em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2em;
  font-weight: 400;
}

.kicker-mark {
  font-size: 0.85rem;
  color: var(--gold);
  letter-spacing: 0;
}

.title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 9vw, 7rem);
  font-weight: 400;
  line-height: 0.95;
  color: var(--ink);
  letter-spacing: 0.015em;
  margin-bottom: 1rem;
  background: linear-gradient(
    180deg,
    var(--ink) 0%,
    var(--blue-600) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle-jp {
  font-family: var(--font-jp);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.45em;
  color: var(--blue-600);
  margin-bottom: 0.5rem;
  padding-left: 0.45em;
}

.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 1.75rem 0 1.25rem;
}

.divider-dot {
  width: 5px;
  height: 5px;
  background: var(--blue-400);
  border-radius: 50%;
}

.divider-line {
  width: 80px;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--blue-300),
    transparent
  );
}

.meta {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-style: italic;
  letter-spacing: 0.18em;
  color: var(--muted);
  font-weight: 400;
}

.main {
  padding: 2rem 2.5rem 6rem;
  max-width: 1500px;
  margin: 0 auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 36px 28px;
}

.card {
  position: relative;
  cursor: zoom-in;
  background: var(--cream);
  padding: 12px 12px 40px;
  box-shadow:
    0 1px 2px rgba(42, 62, 84, 0.05),
    0 6px 18px rgba(58, 125, 165, 0.08);
  transition:
    transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1),
    box-shadow 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
  animation: fadeInUp 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) backwards;
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.4) 0%,
    transparent 50%
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.card:hover {
  transform: translateY(-6px) rotate(-0.4deg);
  box-shadow:
    0 4px 8px rgba(42, 62, 84, 0.06),
    0 24px 48px rgba(80, 153, 194, 0.22);
}

.card:hover::before {
  opacity: 1;
}

.card:nth-child(even):hover {
  transform: translateY(-6px) rotate(0.4deg);
}

.card-image {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--blue-100);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
  filter: saturate(1.05);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-num {
  position: absolute;
  bottom: 12px;
  left: 18px;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.8rem;
  color: var(--ink-soft);
  letter-spacing: 0.12em;
  font-weight: 400;
}

.card-download {
  position: absolute;
  bottom: 8px;
  right: 12px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-500);
  text-decoration: none;
  font-size: 0.95rem;
  border-radius: 50%;
  background: transparent;
  transition:
    background 0.25s ease,
    color 0.25s ease,
    transform 0.25s ease;
  opacity: 0;
}

.card:hover .card-download {
  opacity: 1;
}

.card-download:hover {
  background: var(--blue-100);
  color: var(--blue-600);
  transform: translateY(2px);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem;
  color: var(--muted);
  font-family: var(--font-jp);
  letter-spacing: 0.2em;
}

.footer {
  text-align: center;
  padding: 2rem 2rem 5rem;
}

.footer .divider {
  margin-bottom: 1.5rem;
}

.footer-text {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.35em;
  font-weight: 400;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(227, 242, 251, 0.78);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 3rem 2rem;
  animation: fadeIn 0.35s ease;
}

.lightbox[hidden] {
  display: none;
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  width: 46px;
  height: 46px;
  background: var(--cream);
  color: var(--ink);
  border: 1px solid var(--blue-200);
  border-radius: 50%;
  font-size: 0.95rem;
  font-family: var(--font-serif);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(58, 125, 165, 0.15);
  transition:
    transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1),
    background 0.2s ease;
  z-index: 1;
}

.lightbox-close:hover {
  transform: rotate(90deg);
  background: var(--blue-100);
}

.lightbox-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox-frame {
  background: var(--cream);
  padding: 14px;
  box-shadow:
    0 1px 2px rgba(42, 62, 84, 0.06),
    0 24px 60px rgba(58, 125, 165, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.lightbox-frame img {
  max-width: min(80vw, 920px);
  max-height: 65vh;
  display: block;
  filter: saturate(1.05);
}

.lightbox-info {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.lightbox-num {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--blue-500);
  font-size: 0.95rem;
  letter-spacing: 0.25em;
  font-weight: 400;
}

.lightbox-name {
  font-family: var(--font-jp);
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.lightbox-download {
  margin-top: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 13px 32px;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  text-decoration: none;
  border-radius: 999px;
  transition:
    background 0.25s ease,
    transform 0.25s ease,
    box-shadow 0.25s ease;
  text-transform: uppercase;
  font-weight: 500;
}

.lightbox-download:hover {
  background: var(--blue-600);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(58, 125, 165, 0.3);
}

.lightbox-download .arrow {
  transition: transform 0.25s ease;
  font-size: 1rem;
}

.lightbox-download:hover .arrow {
  transform: translateY(3px);
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (max-width: 720px) {
  .header {
    padding: 3.5rem 1.5rem 2rem;
  }
  .main {
    padding: 1.5rem 1.25rem 4rem;
  }
  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 14px;
  }
  .card {
    padding: 8px 8px 30px;
  }
  .card-num {
    font-size: 0.7rem;
    bottom: 8px;
    left: 12px;
  }
  .lightbox-close {
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
  }
  .lightbox {
    padding: 2rem 1rem;
  }
  .lightbox-frame {
    padding: 8px;
  }
}